SUSTAINABILITY

Yakisugi and Sustainability

Sustainability – one of our core values at Nakamoto Forestry

We should be mindful to always act in a way that conserves resources for the Earth as well as for future generations. At Nakamoto Forestry, where we focus on the bigger picture and look ahead to future generations, this has always been imperative. And that’s why operating all our processes sustainably is such a top priority for us, to allow sustainable construction at the end of the process chain.

Our parent company, Nakamoto Forestry in Japan, has already laid the groundwork. As a long-established and now third-generation family business, we own 2,000 hectares of forest, our own tree nursery, our own forester’s workshop and three sawmills. All forest stands are certified as sustainably managed (SGEC = Sustainable Green Ecosystem Council, PEFC = Programme for the Endorsement of Forest Certification Schemes) and subject to continuous monitoring.

For every tree felled,
a new one is planted

Nakamoto Forestry

We manage all parts of the cycle, from felling the tree, to the planing, firing and brushing off the soot layer, in a controlled manner from a single source.

As all of these actions exemplify, what underpins our sustainable and eco-aware initiatives across generations is a set of fundamental beliefs that echo Japanese culture through and through and have been part of the Nakamoto Forestry roadmap for generations.

Japanese cedar versus “domestic” woods

With sustainable construction in mind, one question often posed to us is what precludes the use of domestic wood to produce Yakisugi, which would then eliminate the need to transport wood from Japan to Europe. To answer this, we have to first put the term “domestic wood” into its proper context.

Although the idea of cladding a facade using wood from local forest stands sounds appealing, the reality is often very different. So-called “native” woods often originate from Finland (Nordic spruce), for example, or Siberia (Siberian larch). Not every wood is even usable as a facade, let alone to manufacture Yakisugi.

First of all, the wood variety used should be as durable as possible by nature to withstand wind and weather, for decades if possible. The tree species proliferating in Germany central Europe are spruce and pine, which tend to have a durability grade of 3 to 4 (moderate to low). If you clad your exterior with wood of these grades, it may well need replacing after just ten to twenty years. Back in Japan meanwhile, Yakisugi facades dating back eighty years or more are not uncommon, because the Japanese cedar is classed as “durable” and, as such, outperforms most “domestic” wood varieties.

For more insights into why authentic Yakisugi is made solely from Japanese cedar, and how it outperforms other woods, visit our page “What is Yakisugi”.

Yakisugi and its carbon footprint – facts and figures

Another of our certificates is the EcoLeaf certificate (Type III, ISO 14025, no. JR-BC-2001E), which we received in 2020. This certificate follows global Life Cycle Assessment (LCA) standards and evaluates the CO₂ emissions of our products. According to this certificate, the production of our Yakisugi generates 2.1 kg CO₂ equivalent per m². Our Yakisugi stores approximately 15 kg CO₂ equivalent per square metre for as long as the timber remains in place.